package com.sky.controller.admin;

import com.sky.config.RedisConfiguration;
import com.sky.dto.DishDTO;
import com.sky.dto.DishPageQueryDTO;
import com.sky.entity.Dish;
import com.sky.result.PageResult;
import com.sky.result.Result;
import com.sky.service.DishService;
import com.sky.vo.DishVO;
import io.swagger.annotations.Api;
import io.swagger.annotations.ApiOperation;
import io.swagger.annotations.ApiResponse;
import lombok.extern.slf4j.Slf4j;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.data.redis.core.RedisTemplate;
import org.springframework.web.bind.annotation.*;

import java.util.List;
import java.util.Set;


/**
 * 菜品管理
 */
@Slf4j
@Api(tags = "菜品相关接口")
@RestController
@RequestMapping("/admin/dish")
public class DishController {
    @Autowired
    private DishService dishService;

    @Autowired
    private RedisTemplate redisTemplate;


    /**
     * 新增菜品
     * @param dishDTO
     * @return
     */
    @ApiOperation("新增菜品")
    @PostMapping
    public Result save(@RequestBody DishDTO dishDTO)
    {
        log.info("新增菜品：{}",dishDTO);
        dishService.dishWithFlavors(dishDTO);

        //清理对应id的缓存
        String key = "dish_" + dishDTO.getCategoryId();
        //redisTemplate.delete(key);
        cleanCache(key);

        return Result.success();
    }

    /**
     * 菜品分页查询
     * @param dishPageQueryDTO
     * @return
     */
    @GetMapping("/page")
    @ApiOperation("菜品分页查询")
    public Result<PageResult> pageQuery(DishPageQueryDTO dishPageQueryDTO)
    {
        log.info("菜品分页查询，{}",dishPageQueryDTO);
        PageResult pageResult =  dishService.pageQuery(dishPageQueryDTO);
        return Result.success(pageResult);
    }


    /**
     * 根据id删除菜品
     * @param ids
     * @return
     */
    @DeleteMapping
    @ApiOperation("根据id删除菜品")
    public Result deleteByID(@RequestParam List<Long> ids)
    {
        log.info("根据id删除菜品：{}",ids);
        dishService.deleteById(ids);

        //将所有的菜品缓存都清理
        cleanCache("dish_*");

        return Result.success();
    }

    /**
     * 根据id查询菜品
     * @param id
     * @return
     */
    @GetMapping("/{id}")
    public Result<DishVO> getBId(@PathVariable Long id)
    {
        log.info("根据id查询菜品：{}",id);
        DishVO dishVO =  dishService.getBIdWithFlavors(id);
        return Result.success(dishVO);
    }

    /**
     * 修改菜品
     * @return
     */
    @PutMapping
    @ApiOperation("修改菜品")
    public Result update(@RequestBody DishDTO dishDTO)
    {
        log.info("修改菜品：{}",dishDTO);
        dishService.updateWithFlavors(dishDTO);
        cleanCache("*dish_*");
        return Result.success();
    }

    /**
     * 菜品停售
     * @return
     */
    public Result startOrStop()
    {
        return Result.success();
    }

    @GetMapping("/list")
    @ApiOperation("根据分类id查询菜品")
    public Result<List<Dish>> list(Long categoryId){
        List<Dish> list = dishService.list(categoryId);
        return Result.success(list);
    }

    //统一清理缓存
    private void cleanCache(String patten)
    {
        Set keys = redisTemplate.keys(patten);  //获取对应的keys，统一删除
        redisTemplate.delete(keys);
    }
}
